"Everything works fine with the device!"

"Okay, start loading!"

With the order of the production supervisor, in the No. 1 production area of Xinghai Group's aluminum alloy production workshop, the workers operated the handling equipment according to the operation requirements on the display screen, and put a certain number of standard aluminum ingots into the material frame.

Aluminum ingots are automatically screened and fall into the conveyor belt.

When the aluminum ingot passes through the scanning area of the visual handling robot, the conveyor belt will stop, the camera will shoot, and the image will be analyzed. The robot will automatically grab the aluminum ingot to another conveyor belt, and the program will automatically record the number of grabs.

When the program determines that the quantity meets the technological requirements, the next step - weighing!

Because the weight of each aluminum ingot is still somewhat different, automatic weighing and recording of data are generally within a certain error.

Similarly, aluminum ingots of different weights will automatically grab other elements.

After other elements meet the conditions, the aluminum ingots and other elements will be automatically put into the melting furnace, step by step according to the program.

This automatic procedure, including heat treatment temperature and time, heating rate and cooling rate, has strict requirements.

Xinghai Group's aluminum alloy factory only needs workers to carry aluminum ingots, and the rest is handed over to the equipment.

A furnace can smelt up to 20 tons, how many tons of aluminum alloy need to be smelted, just enter the value.

The next step will only be performed if the conditions are met.

For example, if the number of a certain element is not enough, it will have a voice prompt:

"The magnesium weight is not enough, it is still 5 kilograms!"

At the same time, there is a road map of the total operation on the big screen. Wherever it runs, it will display green. If there is an abnormality, a red dot will appear at a certain point, and the engineer will immediately know which link has a problem.

Advancedization has reached this level!

There is no such advanced automatic production line in aluminum alloy factories at home and abroad!

It looks and feels very black technology, and it has reached intelligence.

In fact, it is not a black technology. Experts in automation design know that this set can still be achieved. It only requires a very deep understanding of automation knowledge and experience, skilled use, and supporting equipment. In the final analysis, it is mainly smashing money.

For example, visual automation grasping robots, this set is very common in automated production companies.

A robot that can grab 50kg + vision system + auxiliary equipment can be achieved by several hundred thousand yuan.

A production line will have several visual automatic grasping robots and other types of robots, while the general factory directly uses manual handling.

The robot will not grab more workpieces. Each time it grabs an aluminum ingot (suction cup), it is equivalent to executing a grabbing and handling procedure.

Another example is the automatic screening equipment for blanking of aluminum ingots, which is actually a set of tooling that uses the gravity of the workpiece and is widely used in the factory.

Of course, in order to realize the aluminum alloy melting automation of Xinghai Group, a lot of automation equipment is needed, and these automation equipment are connected in series.

Maybe if you have money, you can buy these automation equipment.

But the most difficult part of the automation equipment of Xinghai Group is the overall logic design and the logic program of the specific process.

This is the core of automation equipment!

An abnormality occurs in one link, and all other links are finished.

There are engineers watching at the scene, that is, when there is an abnormality, it will be dealt with in time.

The most important thing is production safety. When the robot is running, it will not automatically stop due to a worker's safety accident.

It is not difficult to achieve this step. It is to add safety gratings. When a safety grating is encountered, a certain robot or production line will stop running. After leaving, it will automatically run again. However, it is impossible to install safety gratings everywhere, which will give practical Production brings trouble, if it is not necessary, try not to install it.

In addition, it is human-computer interaction, which is also the most difficult to solve at present. The production line of Xinghai Group only has a little taste.

Although the workers have been trained, they do not know how to maintain the equipment and need engineers to be responsible.

A few hours later, the first batch of aluminum alloy 6009 for automobiles was produced.

The specifications of aluminum alloy plates for automobiles are based on the industry standards issued by the industry and information departments, and Xinghai Group will adjust them according to the conditions of various automobile OEMs.

For example, 6009 board, the thickness of the supply board is 2 mm, the mainstream width is 1000mm, 1500mm, 1800mm, and the mainstream length is 4000mm, 5500mm.

The first aluminum alloy plate 6009 in front of us is 1500 mm wide and 5.5 meters long.

After the aluminum alloy plate was cooled, the engineer asked to pick up the vernier caliper to measure the thickness error of the plate.

The allowable tolerance of different plate thicknesses is different. According to the industry standard, the allowable tolerance of 2 mm plate thickness is 0.13mm, which is about 6.5% of the positive and negative plate thickness.

However, Xinghai Group requires a tolerance of 0.10mm, that is, plus or minus 10 wires, which should be controlled within 5% of the plus and minus plate thickness.

5% is actually the supply standard for the plate thickness standard of many materials.

For example, the thickness of the plate is 20 mm, and the thinnest place cannot be less than 19 mm! If the plate is severely corroded and thin, it can only be downgraded.

Generally speaking, steel mills and aluminum mills can meet this industry standard, but if not controlled well, it will be too thin or too thick.

Although the purchase is based on weight, the thickness error, especially for the sheet metal bending process, has a great impact.

For example, this furnace of 6009 aluminum alloy plate of Xinghai Group can be numbered as xxxxx20110421001 furnace number (hereinafter referred to as the No. 1 furnace), and the thickness of the plate is very uniform, if it is 2.02 mm.

The next batch of 6009 aluminum alloy plate is a different batch, and the plate thickness may be 1.98mm.

Although both 2.02mm and 1.98mm meet the tolerance, it will bring trouble to the production of sheet metal bending.

Different plate thicknesses must have different bending force requirements, and the final folded sheet metal shape angle will definitely deviate!

This makes it difficult to bend!

Moreover, even with the same plate thickness, the hardness is too different, and the bending strength is also different!

It's over, Barbie q!

Therefore, if you want to achieve mass production, the difficulty is here!

It's unstable!

The most fearful thing for sheet metal bending is to encounter materials with different heat numbers and batch numbers.

Sheet metal engineers, the most annoying thing is to run into this situation.

A factory engaged in sheet metal production will definitely require a stable plate thickness.

Especially in automobile OEMs, the degree of automation is high and the sheet metal is required to be stable, otherwise it will be difficult to achieve automated production.

At this point, the quality engineer has already measured the measurement quantity.

"Every 200mm, 12 points were measured, all were 2.01mm! Great!"

The minimum reading of the vernier caliper is 0.01 mm (the sub-reading ruler has 50 graduations, 0.5mm/50=0.01mm)

If you want to measure more accurately, you must have other more accurate thickness measuring instruments, but it is not necessary.

"The roughness is qualified! It's very bright, within 0.4."

The quality engineer judges with the naked eye, and can judge by the reflective surface and hand touch. It is very troublesome to use the instrument to measure.

In addition, it is necessary to measure the levelness, that is, the unevenness of the error within a few meters.

After the measurement, the hardness is measured again.

Because the aluminum alloy 6009 is relatively soft, a portable Vickers tester is used to measure the hardness.

After about half an hour, the measurement of main indicators such as thickness, roughness, levelness, hardness, etc. was completed, and the quality engineer completed the measurement.

After measuring this heat, the thickness of the 6009 plate in the No. 2 production area is also cooled.

The quality engineer makes another measurement, and the difference between the different heats mainly depends on the difference of the thick plate.

No. 2 furnace, thickness 2.02 mm!

very good!

The quality engineer is most afraid that the No. 1 furnace is 2.10 mm, and then the No. 2 furnace is 1.90 mm. Although they are all within the tolerance range and meet the requirements of thick plates, the actual tolerance has reached 0.2 mm. This tolerance is very large!

The plate thickness of different heat numbers is not stable, and the sheet metal engineer of the automobile factory is going to be scolded.

"I don't do it anymore!"

"It is necessary to purchase aluminum alloy plates with stable plate thickness, otherwise it will not be possible to mass-produce it, and the adjustment process will be deadly!"

In general, from the perspective of material size and hardness measurement, the two furnaces of Xinghai Group's aluminum alloy plates are excellent.

Domestic aluminum alloy factories are incomparable, and if they are compared internationally, they must be the top aluminum alloy plates.

The next job, it is not the matter of the quality engineer.

The R&D engineer asks workers to cut samples, and then take them to the machining factory to process the samples for mechanical performance testing.

At four o'clock in the afternoon, the cutting was finished, and the driver took the goods to the machining workshop of the headquarters base for processing samples.

At eleven o'clock the next morning, the mechanical results came out.

For the plate of each heat number, three samples are taken for each tensile and impact test. Due to the thin plate, the bending is positive bending, so 4 samples are required.

Furnace No. 1, three samples were made by stretching, the yield strength was 255.66mpa, 251.23mpa, 258.42mpa, and the tensile strength was 315.63mpa, 311.43mpa, 318.55mpa.

The data of No. 2 furnace is not much different from that of No. 1 furnace, and it is relatively stable.

This strength is about 10% better than imported ones.

For the car factory, maybe this is not important, the main thing is the plasticity, that is, the elongation.

Because it is necessary to take into account the cold deformation of the door of the complex structure.

The six tensile samples of Xinghai Group were measured.

The elongation is between 25%-28%!

A minimum of 20% is required, and the requirements are met.

In engineering, materials with elongation o5% are often referred to as plastic materials, such as low-carbon steel, aluminum, copper, etc. that are statically loaded at room temperature;

The materials with elongation o5% are called brittle materials, such as cast iron, glass, ceramics, etc. under static load at room temperature.

In fact, if the elongation is less than 15% and the deformation is relatively large, cracks are likely to occur in the door with a complex structure of cold deformation.

Elongation and strength are contradictory. The higher the strength of a metal material, the lower the elongation. This is the law of all metal materials, and Muyang cannot change it.

On April 21, at four o'clock in the afternoon, Muyang received the experimental data report from the aluminum alloy factory.

It worked!

Materials are superior.

Moreover, production is very stable, and mass production has been achieved.

In this way, Xinghai Group has another world first: aluminum alloy automobile plate!

In two days, the senior executives of Zheli Motors in the same city will come to inspect.

Mu Yang attached great importance to this inspection, and he wanted to accompany him personally. If the mass production did not go well, he would be embarrassed.

Zheli Group is headquartered in H City, and has established vehicle and powertrain manufacturing bases in Ningcheng, Xiangtan, Rongcheng, Baoji and Jinzhong in Jiangnan Province.

Shangqi Volkswagen, Yiqi Volkswagen and Shangqi GM (Qi=qi) still maintain the top three domestic auto production, and Zheli Motor is in the top ten, and in 2018, it climbed to the fourth place.

The Volkswagen brand has always been in a dominant position in the sedan field, with Lavida, Jetta, Sagitar, Bora, Passat and other sedans ranking among the top 20 in sales for a long time.

The cumulative sales volume of North and South Volkswagen exceeded 4 million, accounting for 18% of the passenger car market share in Huaguo. It is equivalent to the sum of five Japanese brand car companies, two joint venture car companies, Dongfeng Nissan, Honda and Toyota.

Shangqi Volkswagen, just hearing the name, it is known that it is a joint venture, that is, domestic Shangqi + foreign brand Volkswagen, in addition, such as Dongfeng Nissan, bj Hyundai, Guangqi Honda, Yiqi Toyota, Dongfeng Honda, Guangqi Toyota, Yuecheng Toyota etc.

The internal capital relationship of the auto industry is relatively complex. Yiqi, Dongfeng and other groups have many production bases all over the country. Of course, the interpersonal relationships of these large state-owned enterprises are also complicated.

Zheli Automobile was founded from scratch by Li Shufu, and the internal interpersonal relationship is not as complicated as that of state-owned enterprises. This is Muyang's breakthrough into the automotive aluminum alloy sheet industry.

Zheli Motors has several models that are very popular, Emgrand.

A few years later, the sales of the leading models such as Vision, King Kong, Emgrand GL, Borui, Boyue, Emgrand GS, and Vision SUV are all good. For example, the Vision SUV with a naked price of 70,000 to 80,000 yuan is popular with the majority of riders.

With a down payment of about 40,000 yuan, you can bring a new car home, which is relatively easy for most young people with limited funds to accept.

It is these relatively cheap, but very good-looking cars that make rural cars more and more popular.

April 23, ten o'clock in the morning.

Li Shufu, Chairman of Zheli Automobile, and other senior executives visited the aluminum alloy factory of Xinghai Group, and Mu Yang and Zhang Xiaofeng received them in person.

Zheli Automobile has been listed. According to its annual report last year, its revenue was 20.099 billion yuan and its pre-tax profit was 1.9 billion yuan.

Xinghai Group's revenue last year was several billion yuan less than that of Zheli Automobile, but its pre-tax profit was more than four times that of Zheli Group.

This year's Li Shufu is 47 years old, and his personal wealth and social influence are indeed not as good as Mu Yang, who is soaring today.

But he is the richest man in the domestic auto industry, and of course he has great influence.

The slightly fat Li Shufu saw Mu Yang, his eyes lit up, he stepped forward to shake hands with Mu Yang and said, "Mr. Mu, you are really young and handsome."

The two high-level executives who came with Li Shufu were indeed surprised when they saw Mu Yang: This young man is really handsome!

Li Shufu has a son, who is 26 years old this year. He has long hair. The second generation of Che is really incomparable to Mu Yang in front of him. This is the current impression of the executives of Zheli Automobile. With Mu Yang in front of him for comparison, there is no comparison at all.

"Mr. Li, I've admired your name for a long time." Mu Yang politely shook hands with all the visitors from Zheli Automobile in turn.

After the two sides chatted, Li Shufu said enviously, "Mr. Mu, when will your company's Xinghai Building move in? Let's take a look at it then."

The 518-meter Xinghai Building of Xinghai Group has already been reported in the news, especially in H City, it has been on the local TV station many times, and some citizens even watch it there.

"Come on, at the end of next year, Mr. Li is always welcome to come for tea." Mu Yang smiled and said, "Your Emgrand is selling really well. In my home town, there are many cars like this on the streets."

Mu Yang did not support him either. In his hometown, there are indeed many Emgrand cars.

"Haha, to put it nicely, the sales are good, to put it badly, we can only live in the countryside. We still have a long way to go, unlike your Xinghai Group, which has a number of world-leading technologies and products occupy a leading position in the market. , as for your second-guaranteed welding machine, we are using it, I heard that it is not easy to buy, and the money earned by a welding machine is more than what we can make by selling a car."

The two chatted about business and chatted while walking.

"Mr. Mu, you give out year-end bonuses during the new year, but it hurts our interests?"

"No, that's such an exaggeration."

Li Shufu pretended to have a wry smile: "Our employees, talking about the Xinghai Group next door, how do they give out year-end bonuses? Ordinary employees have year-end bonuses for five or six months, and those engineers pay hundreds of thousands of year-end bonuses to millions. .I hear the staff discussing this, and I can't tell if it's painful."

Mu Yang said modestly: "If Zheli Motors is poor, no car factory will be rich. Last year, you bought 100% of Volvo's shares at a price of 1.8 billion US dollars, which surprised me."

Muyang brought Zheli Automobile and other high-level executives to the factory office and sat on both sides of the long round table facing each other.

Zhang Xiaofeng opened the ppt and briefly introduced the history and honor of Xinghai Group.

Xinghai Group has a number of world firsts, such as handheld laser welding equipment, fiber lasers, secondary welding machines, tungsten argon arc welding, titanium alloys, etc. Now, there is another world first, aluminum alloy automotive plates.

The specific parameters of aluminum alloys 6009 and 6010 are listed on the screen. Before Li Shufu came, he had read the aluminum alloy promotional materials of Xinghai Group.

When they saw it for the first time, they didn't believe it.

There is no domestic aluminum factory that can produce excellent aluminum alloy automotive plates, which are basically imported and expensive.

Zheli Automobile did not plan to use aluminum alloys in low-end cars, but they acquired Volvo, and the mid-to-high-end brands used aluminum alloy plates for automobiles, all of which were imported.

If it is said that Xinghai Group can really produce excellent aluminum alloy plates for automobiles, with stable quality and cheaper prices than imported ones, they would certainly be willing to purchase them.

If you can get a discount of 4,000 yuan per ton, then you can save about 200 yuan per car. Based on the mid-to-high-end car production of Zheli Automobile, it is estimated that this year will be about 100,000 vehicles~www.mtlnovel.com~ After a year, Saving 20 million yuan is not a problem.

Their pre-tax profit last year was only 1.9 billion yuan, which is an extra 20 million yuan per year.

At the same time, the local supply is very convenient, and the production capacity will not be affected by the shortage of raw materials. The benefit of the output is not easy to estimate, but it is certainly not low.

Therefore, they decided to inspect the aluminum alloy factory of Xinghai Group.

Now, it depends on the actual production capacity of Xinghai Group's aluminum alloy automotive plates and whether the quality is stable. After a while, they have to go to the aluminum alloy workshop to see the actual situation, but they can't just rely on what the other party says. After they purchase the goods, they must also inspect the goods.

If there is no problem, it depends on the price, which is what Li Shufu is more concerned about.

In recent months, the price of their imported 6009 aluminum alloy sheet from Zheli Automobile is about 35,500 yuan / ton, and the price of 6010 is about 38,000 yuan / ton.

I don't know what the exact price of Xinghai Group is.

off topic

It's still one more update, hey, I was in a bad mood yesterday and was affected.